National Semiconductor has introduced two 12-bit ADC and supporting differential amplifier

National Semiconductor Corporation (National Semiconductor Corporation, referred to as the National Semiconductor) today announced two high-speed, low distortion differential amplifier and MAX660CPA datasheet and the other two high-speed, low-power 12-bit ADC (ADC), as signal path to provide a high-performance, high accuracy and MAX660CPA price and low power solutions. LMH6550 and MAX660CPA suppliers and LMH6551 Nationals amplifier chip is designed for drivers 12 and ADC12DL065 ADC12DL040 designed high-speed ADC.

LMH6550 and ADC12DL040 chips can support each other. According to test results show that, if the input frequency is 20MHz, the chips effective number of bits in this group (ENOB) of up to 11.1, without the false signal dynamic range (SFDR) is up to 80dB.

ADC12DL040 and ADC12DL065 are dual-channel high-performance, low power ADC, which is characterized by the analog input signal can be converted to 12-bit digital signal, sampling speeds of up to 40 and 65MSPS. Both ADCs full-power bandwidth of up to 250MHz. If the supply voltage is 3V, the input signal frequency up to 20MHz and the sampling rate of 40MSPS operation, ADC12DL040 chips up to 11.1 effective number of bits, but power consumption is only 210mW. ADC12DL065 chips if the sampling rate of 65MSPS operation, turn signals up to 32.5MHz, the effective number of bits is also up to 11.1, while the power consumption is only 360mW. National Semiconductor recently introduced two other 12-bit ADC, which is a dual channel 66MSPS ADC12DL066 chips, while another was single 80MSPS the ADC12L080 chip. Both chips are designed to support the signal path and design.

LMH6550 and LMH6551 are high-speed fully differential amplifier that can drive 10 to 14 high-performance ADC, such as ADC12DL040 and ADC12DL065. Since these two amplifiers are fully differential voltage feedback using the circuit design, so you can ensure that the signal input to the ADC to strike a balance, and the two chips are suitable for single-ended to differential amplifier or a differential-to-differential amplifier design. If the input signal frequency is 10MHz, LMH6550 amplifier chip no false signal dynamic range of up to-86dBc, but also to 400MHz bandwidth and slew rates up to 3000V/ms. The chip also has a 10ns shutdown / disable function, and may use the +5 V or ± V supply voltage operation. The LMH6551 amplifier chip, if the input signal frequency is 10MHz, it has no false signal dynamic range of up to-85dBc, but also to 370MHz bandwidth and slew rates up to 2400V/ms. The chip output balance error of-70dB, and can use +3 V, +5 V or ± 5V supply voltage operation.

LMH6550 and LMH6551 amplifier chip uses two SOIC-8 package, the procurement are 1,000-unit quantities priced at $ 2.29 and $ 1.60, two chips have a lot of stock. ADC12DL040 chip TQFP-64 package, is in 1,000-unit quantities price is 15 dollars, there are a lot of stock. ADC12DL065 chip TQFP-64 package, is in 1,000-unit quantities price of $ 17, in April began quantities. Prices are for reference only. The four chips are lead-free packages.